Operating instructions

Chapter 4 Operating Instructions
C4000 Standard/Advanced
30 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8009861/WA65/2012-06-12
Subject to change without notice
Configurable functions
a conveyor belt ( and ). Configure fixed blanking for the conveyor, for the material
i
nput an increased size tolerance above the fixed blanking.
U
nlike the normal size tolerance for blanking, the increased size tolerance allows the
blanked object on a specific side of the area to be larger than the blanked area.
In the area of the increased size tolerance, the object can penetrate the protective field if
it does not exceed the increased size tolerance defined.
The increased size tolerance must not cover the last beam.
On fixed blanking with increased size tolerance, you cannot configure a positional tole-
rance or a normal size tolerance in addition.
You can expand the increased size tolerance to the next blanked area as a maximum, or to
the second or second last beam of the light curtain.
Blanked areas require a separate risk analysis!
A blanked area is in principle a hole in the protective field. Check in detail whether and
where blanking is actually required. You must protect the blanked area in another way, e.g.
mechanically. Otherwise you must take the blanked area into consideration in the
calculation of the minimum distance and mount the safety light curtain appropriately.
After modifying the blanking, check the protective field with the test rod. Instructions
can be found in chapter 7.3.3 on page 65.
Also pay attention to the warnings in the related chapter.
Device symbol C4000 Host (receiver), context menu Configuration draft, Edit, file card
Blanking of the related system, option Type of blanking = fixed + increased size
tolerance. Here you can adjust the position of the increased size tolerance and the size of
this area in millimetres directly.
Notes
WARNING
Fig.
15
:
Example of
mechanical protection of
fixed or floating blanking
Blanked area, sides
protected by
mechanical barriers